ECU JEEP CJ 1953 Manual Online

SPRINGS
AND
SHOCK
ABSORBERS

FIG.
S-2—FRONT
SPRING
AND
SHOCK
ABSORBER
—
LATE
CJ-3B,
CJ-5,
CJ-5A,
CJ-6,
CJ-6
A,
DJ-5, DJ-6 1—
Bracket
and Shaft

2—
Axle
Bumper

3—
Bolt
and
Lockwasher

4—
Spring
Clip
5—
Bolt

6—
Plate
7—
Bearing

8—
Bracket

9—
Nut
and
Lockwasher

10—
Spring

11—
Nut
12—
Washer
13—
Bushing

14—
Bolt

15—
Plate
and Shaft
16—
Lockwasher

17—
Nut

18—
Spring
Clip
19—
Bracket

20—
Bushing
(Spring)

21—
Shock
Absorber ings. See Par.

shackles.
S-6 for service information on U-
S-3.
Pivot
Bolts
Early
model
CJ-3B
is equipped with bronze bush­
ings, pivot bolts, and lubrication fittings. The
bolts
are
secured with castellated nuts and cotter pins.

Late
model
CJ
and DJ models are equipped with

rubber
(silent bloc) bushings, bolts, and locknuts

or
lockwashers and nuts. See Fig. S-2. See Par. S-2 for additional description.
S-4.
Remove
Spring
To
remove a spring, proceed as follows:

a.
Raise
the vehicle with a
jack
under the axle.

Place
a stand
jack
under the frame side
rail.
Then

power the axle
jack
so that the load is relieved from the spring with the wheels resting on the floor.

b.
Remove nuts securing spring clip bolts. Remove
the spring plate and clip bolts.
Free
the spring
from
the axle by raising the axle
jack.

C.
Remove the pivot bolt nut and drive out the pivot bolt. Disconnect the shackle either by re­moving the lower nuts and
bolts
on rubber-bushed

shackles,
or by removing the threaded bushings on

U-shackles
(see Par. S-6).
S-5.
Install
Spring

To
install a
spring,
first install the pivot bolt.
Then,,

connect the shackle using the following procedure:

a.
On bronze-bushed pivot bolts, install the bolt
and
nut and tighten the nut.
Then
back it off two
cotter pin
slots
and install the cotter pin. The nut must be
drawn
up tightly but must be sufficiently

loose
to allow the spring to pivot freely. Otherwise
spring
breakage may result.

b.
On rubber-bushed pivot bolts, install the pivot
bolt and locknut (or lockwasher and nut) only
tightly enough to hold the bushings in position until
the vehicle is lowered from the
jack.

c.
Connect the shackle. On
rubber-bushed
shpckles
install
the
bolts
as in subparagraph b above. For

U-shackles
see Par. S-6 installation instructions.

d.
Move the axle into position on the spring by

lowering
(or raising) the axle
jack.
Place the spring, center bolt in the axle saddle.
Install
the spring

clip
bolts, spring plate, lockwashers, and nuts.
Torque
the nuts 50 to 55 lb-ft. 6,9 a 7,6 kg-m.].

Avoid
over-tightening. Be sure the spring is free to
oscillate at both ends.
e. Remove both
jacks.
On rubber-bushed shackles
and
pivot bolts, allow the weight of the vehicle to
seat the bushings in their operating positions.
Then
torque the nuts to 21 to 30 lb-ft. [2,90 a 4,15 kg-m.]. 346

SPRINGS
AND
SHOCK ABSORBERS

10016

FIG.
S-5—SPRING
PIVOT BOLT
FIG.
S-6—FRONT
SPRING SHACKLE
sert the shackle through the frame bracket and eye
of the spring. Holding the U-shackle tightly against
the frame, start the upper bushing on the shackle,
taking
care that when it enters the thread in the
frame it
does
not cross-thread. Screw the bushing
on the shackle about
half
way.
Start
the lower bushing, holding the shackle tightly against the

spring
eye, and thread the bushing in approximate­

ly
half
way.
Then,
alternating from top bushing to
lower bushing,
turn
them in until the head of the bushing is snug against the frame bracket and the bushing in the spring eye is
\{%
[0,794
mm.] away

from
the spring as measured from the inside of hexagon head to the spring.

Lubricate
the bushing and then try the flex of the
shackle,
which must be free. If a shackle is tight it may cause spring breakage and it
will
be necessary
to rethread the bushings on the shackle.
S-7. Shock Absorbers
The
hydraulic, direct-action shock absorbers used
on
these
vehicles are designed to absorb both up­

ward
and downward motion. The upper ends of the shock absorbers are secured to the vehicle frame
side
rails
with mounting brackets and pins. The
lower ends are secured to the springs with pins
which
are an integral part of the spring plates.
Rubber
bushings are installed
between
the mount­
ing pins and shock absorber
eyes.
Movement at the
bushings is taken by flexing of the rubber.
The
rubber bushings and shock absorber
eyes
are
held in place on the mounting pins either by a flat
washer and a cotter pin on Model
CJ-3B,
or by a
flat washer and a locknut on Models
CJ-5, CJ-5A,
CJ-6, CJ-6A,
DJ-5, and DJ-6.

To
remove a shock absorber, first remove the cotter
pins (or locknuts) and washers.
Then
pull
the shock
absorber
eyes
and rubber bushings from the mount­ ing pins.

To
install a shock absorber, first install the rubber
bushings and shock absorber
eyes
on the mounting
shafts.
Then
install the cotter pins or lock nuts.

Tighten
the lock nuts securely.
Squeaking usually occurs when movement takes place
between
the rubber bushings and the metal

parts.
The squeaking may be eliminated by placing
the bushings under greater pressure.
This
is ac­
complished either by adding additional washers where cotter pins are used or by tightening the
locknuts. Do not use mineral lubricant to remove squeak as it
will
deteriorate the rubber.

The
shock absorbers are not refillable and not ad­

justable.
If trouble
develops
the shock absorber must be discarded and replaced with a new one.

If
a shock absorber is removed from the vehicle and

turned
upside down it
will
lose
its prime and be­
come
inoperative. To
test
a unit, hold it in an up­

right
position and work the plunger up and down
the
full
travel four or five times to determine
whether action is positive or faulty.

Note:
The shock absorber stem is smoothly ma­
chined to work through a tight seal in the upper
end of the piston. Do not roughen the stem with

pliers
or similar tool during removal or installation
as this
will
destroy the
effectiveness
of the seal. 11883

FIG.
S-7—FRONT
SPRING SHACKLE (Up
to early 1957)
348

'Jeep'
UNIVERSAL
SERIES
SERVICE
MANUAL

T
BODY

Contents

SUBJECT
PAR.

Brake
and
Clutch
Pedal Pads T-7

Canvas
Tops T-5
Care
of
Fabric
Tops. : T-6

Front
Seat Adjustment. . . T-8
Passenger Seat Safety
Catch
. .T-9
Windshield
T-2, T-3

Windshield
Glass and Weatherstrip T-4

T-1.
GENERAL
The
body
is of
all
steel construction with mountings
that provide a secure attachment to the frame.

All
major panels are of No. 18
gauge
steel. All
open

edges
of the panels are turned under, reinforced

and
flanged to provide strength. These panels are reinforced with
"U"
sections
and welded. All com­

ponent
panels are seamed and welded
together.
The
body
is insulated from the frame with insulator shims placed
between
the
body
and frame and
held in position by the
body
bolts.

The
instruments and controls, mounted on the
instrument panel are within clear view and easy
to reach.

Note:
A new floor pan cover plate has
been

released on late CJ-5 and CJ-6 models, that is
identified by a stamped oval-shaped bubble or
relief, located to the right of the accelerator treadle.
FIG.
T-l—MODEL CJ-3B BODY
1—
Rear
Passenger Seat 8—Front Passenger Seat

2—
Left
Side
Panel
9—Right Side
Panel

3—
Driver's
Seat 10—Spare Wheel
Bracket

4—
Rear
View
Mirror
11—Right
Tail
Gate
Chain

5—
Windshield
12—Tail
Gate

6—
Cowl
13—Left
Tail
Gate
Chain
7— Step
351

BODY

10728

FIG.
T-2—WINDSHIELD
—
CJ-3B

1—
Windshield
Assembly
2—
Filler
Strip

3—
Weatherstrip 4—
Windshield
Glas3

5—
Screw

6—
Clamp
7—
Screw
and Lockwasher
8—
Screw
r
9— —Weatherstrip

Floor
pan
noise
on early CJ-5 and CJ-6
models
may be corrected by installing the new floor pans.
T-2.
Windshield

•
Model
CJ-3B
The
entire windshield and frame assembly may be
lowered down on top of the hood.
This
is accom­ plished by unlatching the retaining catches mount­
ed on the cowl
above
the instrument panel. When lowered do not
fail
to strap it down with the strap provided which is mounted at the top of the

radiator
guard.

A
stationary
type
windshield is used on all vehicles
equipped with
soft
or canvas
tops.
A hinged ven­ tilator mounted in the center of the panel directly
under the
glass
is provided for ventilation. The

glass
is installed in the same manner as on Models
CJ-5,
and
CJ-6.

Vehicles equipped with metal enclosure employ a
stationary windshield which is the same as that used with the canvas top
except
that it has a higher

silhouette
and is wider.
Glass
installation is the same as
CJ-5,
CJ-5
A, CJ-6,
and
CJ-6
A.

T-3.
Windshield
»
Model
CJ-5, CJ-5A, CJ-6, CJ-6A,
DJ-5, DJ-6

The
windshield and frame may be lowered to the

hood
by unlatching the two clamps at each side
of the windshield. When in the lowered position, always secure the windshield by passing the strap
at the top of the windshield through the
loop
on the
hood
and drawing the strap up firmly.
To
remove the windshield from the
body
on early
models, first,
pull
the windshield wiper vacuum
hose
352

'Jeep'
UNIVERSAL SERIES SERVICE
MANUAL

u
MISCEIiLaNEOUS

Contents

SUBJECT
PAR.

Abbreviations
U-15
Extra
Equipment U-2

Front
Bumper Weight U-9
Governor
U-3

Governor
Adjustment U-4

Governor
Maintenance. U-6

U-1. GENERAL

Miscellaneous information included in this sectioi
includes coverage of extra equipment, special
tools,
torque specifications, and charts and tables.

U-2. EXTRA
EQUIPMENT

Much
of the utility of the
*
Jeep*
Universal
is due to
the extra equipment which has been designed to adapt it for farming and industry. The mainte­
nance and use of
some
of this equipment is out­
lined
in this section.

U-3.
Governor Assembly

The
Novi governor is supplied for models equipped

with
the F4 engine.
This
is a centrifugal type governor and is illustrated in Fig. U-2. Complete

installation
instructions are supplied with each
assembly. Adjustment and operating procedures

are
given below.

U-4.
Governor Adjustment

a.
Adjust the carburetor to obtain smooth
engine

idle at 600 rpm., then
stop
the engine.
b.
Check
throttle linkage to ensure maximum
throttle opening. Be certain that throttle and
governor linkage is free.

c.
Place the carburetor throttle in wide-open posi­ tion and
pull
the governor control handle out to
the last notch. Adjust the governor to bellcrank

rod
so that the linkage
will
hold the carburetor
throttle in wide-open position.

d.
Close the governor control and start the
engine

Again
pull
the control out to the last notch and

adjust
the length of the cable at adjusting yoke so
that the
engine
will
run at
2600
rpm. Close the

control
to recheck the linkage for free action and
to make sure the
engine
will
return to 600 rpm.
idle speed.

If
the
engine
runs faster than this speed,
loosen

the lock nut which locks the governor hand control
handle on the dash to the rod and back off the
handle until the carburetor idle speed adjusting

screw
bears on the stop. Tighten the lock nut.
In
the absence of electrical tachometer equipment,

engine
speed may be determined by the speedom­
eter. Safely
jack
up the
rear
wheels and be sure the front wheel drive is not
engaged.
When driving
the
rear
wheels in high or direct transmission gear,
the
speedometer
will
read from 13j^ to 15 mph. [21.6 to 24.0 kph.] at an
engine
speed of from 900
to 1000 rpm.
SUBJECT
PAR.

Heater
U-10 Miscellaneous Data U-16

Pintle
Hook 1X7
Special
Tools. U-ll
Torque
Specifications U-13, 14, 15

Standard
and Recommended Tools
j.
.U-12

U-5.
Novi Governor Operation /

The
Novi governor is directly belted to the F4

engine
as no clutch is provided to disconnect the
drive.

To
operate the vehicle
WITHOUT
governor con­
trol,
push the governor hand control all the way
IN
against the instrument panel.

To
operate the vehicle
WITH
governor control,

pull
the governor hand control handle out. The
hand
control has nine notched positions. Pulling the

control
out to the first notch
sets
the controlled

engine
speed at approximately 1000 rpm. and each successive notch increases the speed 200 rpm.

until
2600
rpm. is reached in the ninth notch. The

hand
control may be released by turning the han­ dle one-quarter
turn
in either direction.

When
the
engine
is being operated under governor

control
(hand control out) the controlled
engine

speed may be
exceeded
at any time by depressing
the
foot
accelerator in the conventional manner to
secure a greater carburetor throttle opening than
that determined by the governor hand control
setting.

U-6.
Governor Maintenance

The
belt tension may be adjusted by raising or
lowering the governor in the slotted
holes
in the mounting bracket. Keep the pulleys and belt free
of
dirt
and oil. Belt slippage
will
affect governor
operation and a tight belt may cause
rapid
wear
of the governor shaft and bearings. Adjust it to
allow Yi' [12,7 mm.] depression midway
between
the pulleys with thumb pressure.
There
is little wear of the internal parts for they
operate in oil. The governor housings are equipped

with
both
fill
and
drain
plugs and also with level

indicating
plugs.
Check
the oil level at each vehicle
lubrication
and change the oil each time the en­

gine
oil is changed using the same grade oil used

in
the engine.

Caution:
Do not
fill
the governor housing above
the level plug. Overfilling
will
prevent governor
control
and possibly cause damage to governor in­

ternal
parts. The capacity of
these
governors is two fluid ounces [59,15 cm3]. The filler plug is
also a vent which should be cleaned thoroughly at
each oil change to be sure that the vent operates.

U-7.
Pintle Hook

The
standard type pintle hook, Fig. U-1, affords a
safe, easy hitch for towing a
trailer
or other vehicle. 357